射频发射;无线电发射

VOA标准英语2018--特朗普宣布关闭美国电波钟

WHITE HOUSE President Donald Trumps administration wants to shut down U.S. government radio stations that announce official time, a service in operation since World War II. WWV and WWVB in the state of Colorado and WWVH on the island of Kauai in the

发表于:2018-12-01 / 阅读(145) / 评论(0)

VOA标准英语2018年(九月)

新概念英语第四册Lesson 43 Are there strangers in spac

Lesson 43 Are there strangers in space? 宇宙中有外星人吗？ First listen and then answer the following question. 听录音，然后回答以下问题。 What does the 'uniquely rational way' for us to communicate with other intelligent beings

发表于:2018-12-08 / 阅读(633) / 评论(0)

新概念英语第四册

中国汽车的立足之本

Anthony Mason : The buzz in Detroit today wasn't for some sexy new American sports car; it was for a bland Chinese Sedan. This is the Geely CK. Interpreter : Geely is the only privately operated Chine

发表于:2018-12-11 / 阅读(116) / 评论(0)

万花筒2006年

英语听力—环球英语 1333 Hearing Mysterious Infrasound

Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Im Ryan Geertsma. Spotlight uses a special English method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 1 What can this music do to your s

发表于:2018-12-19 / 阅读(108) / 评论(0)

环球英语 Spotlight

英闻天下——573 Beijing's New Emission Standard Begins Feb 1

The capital will raise its automobile-emission standards on Friday, making them the strictest in the nation. The Beijing Environmental Protection Bureau said the move is expected to reduce auto pollution by 40 percent to better improve the hazardous

发表于:2018-12-19 / 阅读(121) / 评论(0)

英闻天下

英语笑话听力+文本：AM radio 调幅收音机

Iknewaguywhoplayedhisradioonlyinthemorning. Whensomeoneaskedhimwhy ， hereplied,ThisisanAMradio. Notes: 1.Iknewaguywhoplayedhisradioonlyinthemorning. 我认识一个人，他只在早上收听广播。 2.Whensomeoneaskedhimwhy ， hereplied,Thisisan

发表于:2018-12-26 / 阅读(136) / 评论(0)

英语笑话（MP3+文本）

趣味青春英语第150期:On my back

Idiom: On my back 一个人不停地对某人唠叨 Hit the book: Harness Sustainable Emission Inexhaustible Mitigate Turbine

发表于:2018-12-27 / 阅读(232) / 评论(0)

趣味青春英语

Norway to End FM Radio Broadcasts

On January 11, Norway became the first country to begin turning off signals from its FM radio network. The Norwegian stations will instead use only digital audio broadcasting, called DAB. FM, or frequency modulation, radio stations have been in opera

发表于:2019-01-02 / 阅读(199) / 评论(0)

2017年VOA慢速英语(一)月

VOA慢速英语2018--US Timekeeping Stations Might Go Silent

Three radio stations in the United States mainly broadcast one thing: the official time. The three are radio stations WWV and WWVB, in the state of Colorado, and WWVH, on the island of Kauai in Hawaii. They send out signals that are used by millions

发表于:2019-01-03 / 阅读(145) / 评论(0)

2018年VOA慢速英语(九)月

2006年NPR美国国家公共电台六月-Clean Trucks, Clean Emissions

Diesel fuel in the US and the fumes from diesel engines are about to get a whole lot cleaner. As of today, the Environmental Protection Agency is requiring much of the diesel in the country to have 97% less sulfur in it. It's the start of a project

发表于:2019-01-07 / 阅读(233) / 评论(0)

2006年NPR美国国家公共电台

可以帮助农民干活的机器人

Robot Can Help With Farm Work 可以帮助农民干活的机器人 In the American state of Idaho, a robot moves between lines of fruit trees and grapevines. It is doing farm work. Called IdaBot, this robot is a prototype, or model. An engineering te

发表于:2019-01-12 / 阅读(462) / 评论(0)

2016年VOA慢速英语(十一)月

VOA标准英语2010年-Non-binding Copenhagen Agreement Facin

Negotiators at the climate summit in Copenhagen last month failed to agree on a new climate change treaty to replace the current Kyoto Protocol before it expires in 2012. Jonathan Lash is president of World Resources Institute, an environmental polic

发表于:2019-01-13 / 阅读(136) / 评论(0)

VOA标准英语2010年(一月)

VOA标准英语2009年-India Satisfied with Copenhagen Summit

India says it is satisfied with outcome of the recent climate summit at Copenhagen, which did not spell out specific targets for reducing carbon emissions. India is hailing the united position adopted by big developing countries at the summit. Anjana

发表于:2019-01-13 / 阅读(148) / 评论(0)

VOA标准英语2009年(十二月)

VOA常速英语2007年-US, EU Deadlock Over Emission Cuts May Derail C

By Nancy-Amelia Collins Bali, Indonesia 13 December 2007 The head of the United Nations Climate Change Conference is warning that a deadlock between the United States and the European Union over greenhouse gas emission targets may derail the conferen

发表于:2019-01-16 / 阅读(160) / 评论(0)

VOA常速英语2007年（十二月）

环球英语 — 33： Listener Mail 73

Voice 1 Hello. Im Rachel Hobson. Voice 2 And Im Mike Procter. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Welcome to our li

发表于:2019-01-19 / 阅读(140) / 评论(0)

环球英语 Spotlight

2015年CRI National Carbon Emission Trading Market Planed for 2017

Briefing a news conference on Thursday, Xie Zhenhua, China's special representative on climate change, said the country is exploring emissions trading mechanisms. China now is piloting emission trading in seven provinces or municipalities, and the wo

发表于:2019-01-19 / 阅读(155) / 评论(0)

2015CRI中国国际广播电台

英语听力：2013-10-02 地平线：黑洞吞噬—6

The mystery of what could count for the quasars' extraordinary brightness was the hot topic in astronomy during the 1960s. As astronomers began to grapple with the new enigmatic objects that had been found by the radio telescopes, one astronomer, kee

发表于:2019-01-23 / 阅读(115) / 评论(0)

探索与发现2013年

英国政府力推电动汽车

By announcing a 57-million US dollar extension of its current programme, the UK is signaling that it wants to make electric cars a mainstream option for car buyers. The money will go towards four areas, with proposals like building street lights that

发表于:2019-02-18 / 阅读(160) / 评论(0)

英语新闻

CCTV9英语新闻：Golmud refinery working to meet emission standards

China is now on the front lines of efforts to develop energy sources that can balance the goals of sustaining economic growth and protecting the environment. Decisive action is needed to strengthen policy frameworks across the country to reach that g

发表于:2019-02-18 / 阅读(153) / 评论(0)

cctv9英语新闻2015年

英闻天下——214 Beijing's New Emission Standard Begins Feb 1

发表于:2019-02-21 / 阅读(167) / 评论(0)

英闻天下

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biaxial elastic deformation

binary B-tree

black oxide

cam-linkage mechanism